The title unification, to be contested at a limit of 152 pounds, two beneath the junior middleweight limit, is considered widely to be the most attractive championship megafight that can be made in boxing today.

Mayweather and Ricky Hatton made Grand Rapids one of their press-tour stops, at Ottawa Hills High School, in advance of their 2007 fight.

Mayweather and Oscar De La Hoya also made a Michigan stop on their 2007 press tour, at Detroit's Cobo Hall.

David Mayo has covered Floyd Mayweather throughout the boxer's career. Contact him at dmayo@mlive.com.